Abstract:In order to solve the problems of non-linear,time-varying,anti-disturb and time-lag,the mathematical model of variable pitch control system is established after analyzing the characteristics of wind turbine generator system and the requirement of pitch control;the two fuzzy controllers are designed for the control system of VSCF wind turbine when the wind speed is lower or higher than the rated wind speed.Finally,the proposed system is simulated on SimPowerSystems modules of Matlab/Simulink simulated software,the simulated result shows availability and feasibility of the method.